psg16 (bCEA) mRNA expression in murine tissues, primary cells, and cell lines. RNAs isolated from 4-week-old C57BL/6 mouse tissues (A), primary cell cultures (B), cell lines (C), 2- to 14-week-old C57BL/6 mouse tissues (D), and C57BL/6 mouse brains from mice inoculated i.c. with 50 PFU rA59 or rJHM.SD (E) were analyzed by qRT-PCR for expression of psg16 mRNA. Results are expressed as numbers of cDNA copies of psg16 per million cDNA copies of actb (A to D) or as fold changes compared to mock-infected controls (E). Error bars represent standard errors of the means (n = 3). Data are representative of two or more independent experiments.